DRINKING WATER
Testing For Yesterday's Water In A PFAS World
Relying on assumptions when designing water treatment systems creates unnecessary financial and operational risks. Adopting predictive modeling and data-driven testing provides the precise, actionable insights required to optimize performance, manage costs, and ensure compliance.
DRINKING WATER CASE STUDIES AND WHITE PAPERS
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![EPA Proposed Revisions to the Lead Copper Rule]( "EPA Proposed Revisions To The Lead & Copper Rule")
EPA Proposed Revisions To The Lead & Copper RuleOn October 10th, EPA Administrator Andrew Wheeler announced the long-awaited proposed revisions to the Lead and Copper Rule (LCRR) which was promulgated nearly 30 years ago under the Safe Drinking Water Act.
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Why A Little Knowledge About Sensors Can Be A Dangerous Thing
Every day our technical support people answer questions on the selection of sensors for pH, ORP, conductivity, dissolved oxygen and turbidity. No issue generates more confusion than cell constants for conductivity sensors. The vast majority of returns we process are for conductivity sensors that were ordered with the wrong cell constant. It turns out that cell constants are something that we all read but that most of us don’t really understand. Pick the wrong cell constant for a probe and your analyzer will happily give you numbers to 3 significant digits. The only problem is those numbers are wrong. By Mark Spencer, President, Water Analytics
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![‘You’ve Come A Long Way, Baby’: The Making Of The Modern Day Fire Hydrant]( "'You've Come A Long Way, Baby': The Making Of The Modern Day Fire Hydrant")
'You've Come A Long Way, Baby': The Making Of The Modern Day Fire HydrantThis article is in support of the Imagine a Day Without Water campaign — a national online movement to raise awareness about the value of water and water infrastructure.
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![High-Flux Polymeric Membrane]( "High-Flux Polymeric Membrane For Industrial Water Separation")
High-Flux Polymeric Membrane For Industrial Water SeparationWater is essential to numerous industries such as chemical manufacturing, automotive production, oil and gas refinery and power generation, yet the increasing scarcity of this precious resource makes its recovery from these activities more critical than ever.
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![Pipe image up close for viewing]( "Ductile Iron And Cast Iron Pipes: A Century Of Reliability In Service")
Ductile Iron And Cast Iron Pipes: A Century Of Reliability In ServiceDuctile and cast iron pipes have a proven service life of over 100 years. Their superior durability and strength ensure system reliability, a longevity newer materials have yet to match.
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![AVT_s_EZ_Valve_and_R2M_Site_Services_ensures_the_hot_water_kept_running_at_a_UK_hospital-4]( "AVT™ EZ VALVE® And R2M Site Services Ensured The Hot Water Kept Running At UK Hospital")
AVT™ EZ VALVE® And R2M Site Services Ensured The Hot Water Kept Running At UK HospitalWhen a leak and burst was identified on LTHW (low temperature, hot water) 10” pipes in a UK hospital, turning off the water to fix the issue was not an option. The hospital needed its water supply to remain on to ensure it could continue to treat patients. Following an 18-month investigation into the issue, the hospital’s contractor Morris Mechanical Services, contacted AVT’s UK installer R2M Site Services who suggested installing a number of AVT EZ Valves to create control points enabling repairs to be made.
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![GettyImages-1307827350_elmhurst IL]( "AMI And Leak Detection Stops The Flow Of Non-Revenue Water")
AMI And Leak Detection Stops The Flow Of Non-Revenue WaterHow are water utilities getting the deluge of real and apparent water losses under control? The City of Elmhurst, a stately suburb west of Chicago with a population of about 46,000 residents, is a case study on how one municipality took on the issue.
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![GettyImages-1366352670]( "Winterization Of Ozone And UV Systems: A Guide For Operators And Maintenance Staff")
Winterization Of Ozone And UV Systems: A Guide For Operators And Maintenance StaffA proper winterization plan for treatment plants is essential to maintaining the operational safety of the effluent quality process and preventing disruption to customers.
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![GettyImages-1215336784 algae bloom]( "Ozone Technology In Aquaculture: Enhancing Water Quality And Health")
Ozone Technology In Aquaculture: Enhancing Water Quality And HealthWater quality is the backbone of a successful aquaculture operation. Poor water conditions lead to disease outbreaks, low survival rates, and reduced productivity. Traditional chemical treatments can leave harmful residues and negatively impact both aquatic life and the environment.
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![Software Analytics]( "AMI Data = Insights For Water Utilities")
AMI Data = Insights For Water UtilitiesDiscover how analytics can amplify the benefits of AMI in identifying non-revenue water losses and enhancing customer service.
DRINKING WATER APPLICATION NOTES
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Panametrics Technology Helps Track Potable Water Leaks4/22/2022
Concerned about the volume of water leakages throughout their network, a Swedish water authority turned to Panametrics flowmeters to map their municipal water network -- enabling quick leak identification and fixes.
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Application Bulletin: Reverse Osmosis3/19/2008
Osmosis is the phenomenon of lower dissolved solids in water passing through a semi-permeable membrane into higher dissolved solids water until a near equilibrium is reached
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The Active Control Program For Advanced UV Oxidation12/1/2025
This application note will explore how active control programs lower operational costs of compliant contaminant removal.
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Free Chlorine Measurement In Drinking Water Treatment12/21/2005
Before water can be used as a safe and reliable source for drinking water, it must be properly treated. Since water is a universal solvent, it comes in contact with several different pathogens, some of which are potentially lethal, and inactivation is accomplished through chemical disinfection and mechanical filtration treatment. This treatment consists of coarse filtration to remove large objects and pre-treatment which includes disinfection using chlorine or ozone
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Flexible Expansion Joints Provide Protection For Pipelines Subject To Subtle Or Sudden Movement12/7/2020
Flex-Tend flexible expansion joints have a proven record of providing protection for pipelines subject to subtle or sudden movement. As with all products used in the water and wastewater industry, protection is optimized with the selection of the proper assembly incorporated into a sound design. This paper is intended to provide assistance in both of these areas.
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Improved Determination Of Volatile Organic Compounds In Water By SPME And GC/MS6/21/2018
The analysis of water for volatile organic compounds is important due to their toxicity. The current methods for this determination lack of sensitivity, selectivity or capability for automation. This paper presents the new ISO 17943 Standard using Solid Phase Microextraction (SPME) and GC/MS. The sample preparation by SPME enables limits of detection and easy automation of the whole method. GC/MS provides the required sensitivity and selectivity. This ISO Standard was validated by an interlaboratory trial, which results confirm the outstanding performance for this method.
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SensyMaster Thermal Mass Flowmeter8/3/2021
SensyMaster helps to improve the operating costs of the most cost intensive process in sewage plants: Aeration. High-measuring performance and state of the art technology helps customers increase plant efficiency.
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Reduced Bore Electromagnetic Flowmeter10/29/2021
Being able to accurately measure both the quantity and rate of water passing through a water distribution system is crucial to gain an informed understanding of overall efficiency. As such, achieving a measurement that is exact as possible can have a significant impact on key areas. This includes supply planning, maintenance, resource deployment, leakage detection and the overall environment.
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Ultrapure Water For Determination of Toxic Elements In Environmental Analyses4/10/2018
In this paper the importance of reagent water quality for toxic element environmental analyses is discussed, and the suitability of fresh ultrapure water produced using MilliporeSigma water purification systems for ICP-OES and ICP-MS trace element analyses in environmental laboratories is demonstrated.
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Pile Cloth Media Filtration Removes 97% Of Microplastics From Wastewater12/6/2023
Learn about filtering microplastics from industrial wastewater prior to discharge, and how this is one way to effectively reduce the volume of this waste material from entering our surface water.
DRINKING WATER PRODUCTS
Myron L Company’s 900 Series Multi-Parameter Monitor / Controllers combine Accuracy, Reliability, Simplicity, and Flexibility. The user-intuitive GUI (Graphical User Interface) allows easy and complete programmability of the instrument all from the LCD touch screen.
With 90 years of water treatment experience, Loprest has the expertise to design an effective treatment process for your water treatment challenges. From basic filtration and ion exchange to multiple contaminant applications, challenge Loprest for an economic, effective solution of your water quality compliance issue.
The J7000 Break Check Valve can be easily fitted to any Jones wet barrel hydrant.
The Series 1100 MEGALUG® Mechanical Joint Restraints effectively and economically restrain Ductile Iron Pipe (DIP) to mechanical joints above or below ground, for practically any application including valves, hydrants, and pipe. For use on all classes of ductile iron pipe (PC350 through PC150 and CL56 through CL50) without damage to the pipe or cement linings. It can also be used on steel pipe and cast iron pipe when joining to mechanical appurtenances, see product brochure for more details on these pipes.
The AquaTrans AT600 liquid flow ultrasonic transmitter combines state-of-the-art flow measurement capability with a low-cost transmitter package that can be installed right at the process measurement point. It’s designed specifically for water and wastewater applications in full pipes. The all-digital AquaTrans AT600 has no moving parts and requires minimal maintenance.
LATEST INSIGHTS ON DRINKING WATER
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![Water Drop with brain-GettyImages-481129858]( "When Drinking Water Raises Bigger Questions About Brain Health And Environmental Risk")
A new study linking certain groundwater sources to higher Parkinson’s risk underscores a broader question for the water sector: how environmental exposures in drinking water may influence long-term health.
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![Water Treatment system for boiler station-GettyImages-914817776]( "Filtration Media For Municipal, Industrial, And Landscape Water Treatment: Legacy And Novel Technologies")
The growing demand for water across a variety of sectors combined with the increasingly understood complexity of emerging contaminants is creating a dynamic marketplace for filtration media. The goal of selecting the right filtration media is not to meet minimum standards but to achieve the right balance of performance, durability, and operational simplicity to ensure long-term compliance and cost-effective operation.
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![GettyImages-1272611333]( "Ozone Formulas And Conversions")
Learn key ozone formulas, unit conversions, and measurement standards to accurately calculate generator output, concentration, and dosage for effective system design, performance verification, and safe operation.
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![SaudiDesal-GettyImages-1139892550]( "Persian Gulf Desalination Plants Could Become Military Targets In Regional War")
Saudi Arabia, the United Arab Emirates, and neighboring countries in the Persian Gulf region use the fossil fuels under their desert lands not only to make money, but also to make drinking water. The petroleum they produce powers more than 400 desalination plants, which turn seawater into drinkable water. -
![chemical element Chromium-GettyImages-1376151842]( "From Compliance To Circularity: Rethinking Chromium Management In Chrome Tanning")
In an industrial landscape increasingly shaped by lifecycle accountability, material traceability, and rising disposal costs, chromium recovery is not merely a technical alternative — it is a strategic upgrade, where wastewater can become a resource stream. -
![GettyImages-1180604487 drought]( "Extreme Weather Is Transforming The World's Rivers. We Need New Ways To Protect Them")
Around the world, rivers are no longer changing gradually. Rather, they are being increasingly transformed by extreme climatic events such as floods, droughts, and heatwaves. A newly published global review finds these events are pushing ecosystems beyond their limits and eroding biodiversity and core functions.
DRINKING WATER VIDEOS
The recoating of a potable water tank in Lancaster, PA, included an already tight timeframe and several challenges that cause delays.
As aquatic invasive species continue to overwhelm hydropower, industrial, and municipal systems worldwide, this webinar explores why traditional filtration and chemicals are falling short—and how a dual-barrier UV approach is emerging as a proven, chemical-free alternative backed by global field results.
ABOUT DRINKING WATER
In most developed countries, drinking water is regulated to ensure that it meets drinking water quality standards. In the U.S., the Environmental Protection Agency (EPA) administers these standards under the Safe Drinking Water Act (SDWA).
Drinking water considerations can be divided into three core areas of concern:
- Source water for a community’s drinking water supply
- Drinking water treatment of source water
- Distribution of treated drinking water to consumers
Drinking Water Sources
Source water access is imperative to human survival. Sources may include groundwater from aquifers, surface water from rivers and streams and seawater through a desalination process. Direct or indirect water reuse is also growing in popularity in communities with limited access to sources of traditional surface or groundwater.
Source water scarcity is a growing concern as populations grow and move to warmer, less aqueous climates; climatic changes take place and industrial and agricultural processes compete with the public’s need for water. The scarcity of water supply and water conservation are major focuses of the American Water Works Association.
Drinking Water Treatment
Drinking Water Treatment involves the removal of pathogens and other contaminants from source water in order to make it safe for humans to consume. Treatment of public drinking water is mandated by the Environmental Protection Agency (EPA) in the U.S. Common examples of contaminants that need to be treated and removed from water before it is considered potable are microorganisms, disinfectants, disinfection byproducts, inorganic chemicals, organic chemicals and radionuclides.
There are a variety of technologies and processes that can be used for contaminant removal and the removal of pathogens to decontaminate or treat water in a drinking water treatment plant before the clean water is pumped into the water distribution system for consumption.
The first stage in treating drinking water is often called pretreatment and involves screens to remove large debris and objects from the water supply. Aeration can also be used in the pretreatment phase. By mixing air and water, unwanted gases and minerals are removed and the water improves in color, taste and odor.
The second stage in the drinking water treatment process involves coagulation and flocculation. A coagulating agent is added to the water which causes suspended particles to stick together into clumps of material called floc. In sedimentation basins, the heavier floc separates from the water supply and sinks to form sludge, allowing the less turbid water to continue through the process.
During the filtration stage, smaller particles not removed by flocculation are removed from the treated water by running the water through a series of filters. Filter media can include sand, granulated carbon or manufactured membranes. Filtration using reverse osmosis membranes is a critical component of removing salt particles where desalination is being used to treat brackish water or seawater into drinking water.
Following filtration, the water is disinfected to kill or disable any microbes or viruses that could make the consumer sick. The most traditional disinfection method for treating drinking water uses chlorine or chloramines. However, new drinking water disinfection methods are constantly coming to market. Two disinfection methods that have been gaining traction use ozone and ultra-violet (UV) light to disinfect the water supply.
Drinking Water Distribution
Drinking water distribution involves the management of flow of the treated water to the consumer. By some estimates, up to 30% of treated water fails to reach the consumer. This water, often called non-revenue water, escapes from the distribution system through leaks in pipelines and joints, and in extreme cases through water main breaks.
A public water authority manages drinking water distribution through a network of pipes, pumps and valves and monitors that flow using flow, level and pressure measurement sensors and equipment.
Water meters and metering systems such as automatic meter reading (AMR) and advanced metering infrastructure (AMI) allows a water utility to assess a consumer’s water use and charge them for the correct amount of water they have consumed.